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2320765140 = 223550975991
BaseRepresentation
bin1000101001010100…
…0001000011010100
312222201221002021110
42022111001003110
514223103441030
61022142015020
7111340115061
oct21225010324
95881832243
102320765140
11a91014221
12549277470
132aca65915
14180315c68
15d8b241b0
hex8a5410d4

2320765140 has 48 divisors (see below), whose sum is σ = 6510994560. Its totient is φ = 617646720.

The previous prime is 2320765129. The next prime is 2320765141. The reversal of 2320765140 is 415670232.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2320765098 and 2320765107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320765141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7456 + ... + 68535.

It is an arithmetic number, because the mean of its divisors is an integer number (135645720).

Almost surely, 22320765140 is an apocalyptic number.

2320765140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320765140 is an abundant number, since it is smaller than the sum of its proper divisors (4190229420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2320765140 is a wasteful number, since it uses less digits than its factorization.

2320765140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76512 (or 76510 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2320765140 is about 48174.3203377069. The cubic root of 2320765140 is about 1323.9667064461.

The spelling of 2320765140 in words is "two billion, three hundred twenty million, seven hundred sixty-five thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 509 1018 1527 2036 2545 3054 5090 6108 7635 10180 15270 30540 75991 151982 227973 303964 379955 455946 759910 911892 1139865 1519820 2279730 4559460 38679419 77358838 116038257 154717676 193397095 232076514 386794190 464153028 580191285 773588380 1160382570 2320765140